Brewing

The character is trained in the art of brewing beers and other strong drink. The character can prepare brewing formulas, select quality ingredients, set up and manage a brewery, control fermentation, and age the finished product.

Paladins

A paladin whose ethos forbids partaking of strong drink isn't likely to have this proficiency. A paladin with a more liberal ethos may use this proficiency to prepare drinks for others, even if he declines to partake himself.

[Player's Handbook]
[Complete Paladin's Handbook]